| Magnetic resonance imaging (MRI) is a noninvasive diagnostic technique that provides detailed cross-sectional images of organs and structures without the use of x-rays or other radiation.
Each part of the body, on a cellular level, responds differently when exposed to a magnetic field. Therefore, when an individual is surrounded by a magnetic field, a computer can measure the way in which the different parts of the body respond to the magnetic field, resulting in detailed images that can be used for diagnosis of various medical conditions.
MRI is particularly suited to imaging soft tissues. It can assess organ function, can reveal degenerative changes in body structures, and may be used in evaluating the suitability of organs for transplant. MRI is commonly used to reveal tumors throughout the body, examine joints and soft tissues, or evaluate cardiac or brain function. Unlike computed tomography (CT) scans, in which the slices are cross-sectional, MRI can produce slices in any direction throughout the body. MRI is normally considered safe for pregnant women. |
Source: Medical Disability Advisor